- air drill hammer风锥钻;
- drill pressn.钻床;
- drill pipe钻杆;
- drill downvt.向下钻取数据;
- drill bit钻头;钎头;
- myeloid stem cell[医]髓细胞样干细胞;
- pluripotent stem cell[医]多（潜）能干细胞;
- stem the tiden.顶潮航行;[体]挽回颓势;
- stem from来自， 起源于， 由…造成;出于;
- stem form[树]干形[状];
- Stem cellsn.干细胞( stem cell的名词复数 );
- stem celln.干细胞;
- 双语例句
1、
The drill fluid in the drill stem increases the inertia of lateral vibration.
钻柱内的钻井液增加了钻柱横向振动的惯性质量.
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2、
Calculating results show that fluctuation pressure decrease with eccentricity between drill stem and well bore increase.
计算结果表明:随钻柱与井眼间偏心度增大,波动压力减小.全偏心情况下的波动压力大约只有同心情况下的一半.
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3、
The longer the single drill pipe , the lesser the critical compressive force of drill stem.
钻杆的单根长度越长, 钻柱所能承受的临界载荷越小.
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4、
Pick up drill stem test tool.
提起钻柱测试工具.
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